Class 12 · Organisms and Populations

Biological Community & Species Interdependence — NEET Biology

🔥 Predicted for NEET 2027
📖 NCERT Source

Can you think of any natural habitat on earth that is inhabited just by a single species? There is no such habitat and such a situation is even inconceivable. For any species, the minimal requirement is one more species on which it can feed. Even a plant species, which makes its own food, cannot survive alone; it needs soil microbes to break down the organic matter in soil and return the inorganic nutrients for absorption. And then, how will the plant manage pollination without an animal agent? It is obvious that in nature, animals, plants and microbes do not and cannot live in isolation but interact in various ways to form a biological community. Even in minimal communities, many interactive linkages exist, although all may not be readily apparent.

NCERT Biology · Class 12 · Chapter 11 · Paragraph 38
Why This May Be Tested in NEET 2027

Adjacent to a frequently-asked paragraph in the same chapter.

Practice This Concept
QuestionPredicted for NEET 2027

Why is it impossible to find a natural habitat with only a single species?

📖 Solution & NCERT Explanation
View solution & NCERT explanation

Correct answer: B Every species depends on at least one other for survival

Even autotrophs depend on microbes for nutrients and animals for pollination; thus, isolated existence is ecologically impossible.

❓ Frequently Asked Questions
What does NCERT say about Can you think any?
Can you think of any natural habitat on earth that is inhabited just by a single species? There is no such habitat and such a situation is even inconceivable.
Has this concept appeared in NEET?
High probability for NEET 2027. Adjacent to a frequently-asked paragraph in the same chapter.
Which chapter is this from?
Organisms and Populations, Class 12 NCERT Biology.

Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.

176/180
of the ReNEET 2026 paper (all subjects) was already in the MedicNEET question bank

MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.

176 of 180 ReNEET 2026 questions traced to MedicNEET17,000+ Biology questionsHindi + English
Free to start · Hindi + English · 43,000+ questions · NEET 2026 pattern
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